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Quality Results

The bottom line in any wastewater treatment situation always comes down to the numbers.

  • As a treatment plant operator, the goal of your work is to produce good numbers.
  • As a treatment plant owner, your numbers must often meet rigid local, state and federal mandates.
  • When you specify a treatment plant, you need confidence that good numbers will result, for everyone.

Here are two sets of numbers: some cold weather results from a Walden SBR plant in operation in an environmentally sensitive Rhode Island location…as sampled by an independent service and analyzed by an independent laboratory. If you need more details please contact us.

Sample Number 1


Parameters Sample
Results
Detection
Limits
Units Method
Bod 5 250 3 mg/1 EPA 405.1
T.Suspended Solids 230 2 mg/1 EPA 160.2
Nitrate (as N) <0.1 0.1 mg/1 EPA 353.3
Alkalinity
(as CaCO3)
354 1.0 mg/1 EPA 310.1
TKN (as N) 88.9 0.5 mg/1 EPA 351.3
Ammonia (as N) 55.4 0.1 mg/1 EPA 350.2
Oil & Grease
Gravametric
44 0.5 mg/1 EPA 413.1

Sample Description: Effluent grab

Parameters Sample
Results
Detection
Limits
Units Method
Bod 5 6 3 mg/1 EPA 405.1
T.Suspended Solids 6.3 2 mg/1 EPA 160.2
Nitrate (as N) 0.42 0.1 mg/1 EPA 353.3
Alkalinity
(as CaCO3)
112 1.0 mg/1 EPA 310.1
TKN (as N) <0.5 0.5 mg/1 EPA 351.3
Ammonia (as N) <0.1 0.1 mg/1 EPA 350.2
Oil & Grease
Gravametric
2.0 0.5 mg/1 EPA 413.1

Sample Number 2


Parameters Sample
Results
Detection
Limits
Units Method
Bod 5 2300 3 mg/1 EPA 405.1
T.Suspended Solids 480 2 mg/1 EPA 160.2
Nitrate (as N) 2.01 0.01 mg/1 EPA 353.3
Alkalinity
(as CaCO3)
406 1.0 mg/1 EPA 310.1
TKN (as N) 51.2 0.5 mg/1 EPA 351.3
Ammonia (as N) 30.8 0.1 mg/1 EPA 350.2
Oil & Grease
Gravametric
180 0.5 mg/1 EPA 413.1

Sample Description: Effluent grab 

Parameters Sample
Results
Detection
Limits
Units Method
Bod 5 14 3 mg/1 EPA 405.1
T.Suspended Solids 7.7 2 mg/1 EPA 160.2
Nitrate (as N) 2.92 0.01 mg/1 EPA 353.3
Alkalinity
(as CaCO3)
116 1.0 mg/1 EPA 310.1
TKN (as N) 3.8 0.5 mg/1 EPA 351.3
Ammonia (as N) 0.7 0.1 mg/1 EPA 350.2
Oil & Grease
Gravametric
<0.5 0.5 mg/1 EPA 413.1

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